The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 1976
Filed:
Jan. 24, 1974
Applicant:
Inventors:
Shuji Kimura, Tokyo, JA;
Sachio Ohmori, Yokohama, JA;
Assignee:
Nippon Kogaku K.K., Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B / ;
U.S. Cl.
CPC ...
354250 ; 354253 ; 354254 ; 354261 ; 354262 ;
Abstract
A rotary shutter mechanism for use in a camera having a winding mechanism and a release mechanism includes a sector change-over mechanism which comprises a pair of substantially semicircular sectors mounted on respective drive shafts. One of these sectors which covers a picture-taking opening serves as a leading curtain and the other sector disposed 180.degree. out of phase with respect to the first sector serves as a trailing curtain. These sectors are individually rotatable through 180.degree. in one direction to effect a shutter operation. Thus, the sectors need not be returned to their original positions during each winding operation.